Issue: If your site can be accessed with or without “www” (e.g., both www.example.com and example.com), search engines might treat these as separate pages, splitting SEO value between them and hurting rankings.
Fix: Decide which version (with or without “www”) you want as the main one. Then, set up a 301 redirect from the alternate version to the preferred one. Use Google Search Console to confirm which pages are indexed correctly.
Tip: Consistent URLs help search engines focus on a single version, improving your SEO.